Ore-concentrator



(No Model.) 2 Sheets-Sheet 1..

D.H.MASTERS ORE OONCENTRATOR.

Patented Oct.16,1888

(N0 Model.) 2 SheetsSheet 2.

D. H. MASTERS.

ORE CONGENTRATOR.

V'ENTOR a? I? ;M W

N PETERS. Phow-uxha m mr, W-Nhinglrm. D C.

Nrrnn STATES Fries.

FATENT ORE-CONCENTRATO R.

SPECIFICATION forming part of Letters Patent No. 391,257, dated October 16,1888.

Application filed October 10,1887.

T aZZ whom it may concern.-

Be it known that 1, DAVID H. Masrnns, a citizen of the United States, and a resident of Azotea, in the county of Rio Arriba and Territory of New Mexico, have invented eertain new and useful Improvements in Ore-Concentrators; and I do hereby declare that the following a full,clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, which form a part of this specification, and in which Figure 1 is a perspective view of my new and improved ore-concentrator. Fig. 2 is a top plan view of the same. Fig. 3 is a longitudinal vertical central sectional view through the top machine, and Fig. 4 is a sectional view of the hydraulic classifier.

The same numerals of reference indicate corresponding parts in all the figures.

- My invention consists in a new and improved ore-concentrator; and it consistsin the improved construction and combinations of parts of the same, as will be hereinafter fully described and claimed.

Referring to the several parts by their designating-numerals, 1 indicates the upright frame, in which the several parts of my invention are supported in their operative positions, 2 2 being the mud-sills of the said frame.

3 indicates the top table or sluice of the series, consisting of the bed-frame 4, which is movablysupported upon the legs 5, and the table 6 with its several parts. These legs 5 are supported on the cross-pieces 7 of the main frame 1 at that point near the corners of the said bed-frame, and they consist of short rods the ends of which are flattened and perforated, and are then pivoted between the parallel jaws 8 8 of bearings 9, which are bolted to the under side of the bed-frame and upon the cross-pieces of the main frame 1 at the points shown. It will be seen that by this arrangement, while the table is firmly supported, it is still capable of being rocked or oscillated to and fro longitudinally. The table or upper section of the sluice 6 is hinged at its rear end .upon the bed-frame 4, and its pitch or inclination can be altered and adjusted by means of Serial No. 251,936. No model.

adjusting-screws 10 at the front end of the ma chine, resting with their lower ends upon the bed-frame 4. The table is formed at its front end with the usual discharge-holes, 11 11, and at the rear end of the table is secured removably in the side pieces, 12 12, of the tableframe the screen 13, which forms an important feature of my invention, and which slides into grooves 14 14 in the inner side of the side pieces, 12 12.

15 indicates the incline leading down from the rear end of the screen.

16 indicates the beam, which I shall denominate the bumping-beam. This beam eX- tends at one end beneath the table 6 from the front end of the machine and is secured thereto, its inner end reaching just in front of the screen.

17 17 indicate the upright parallel bumpingposts,betwecn which passes the bumping-beam 16, and which are secured in the mud-sills 2 2, and which are further strengthened by the inclined braces 18 18 from the said bottom siils. To the front of these bumping-posts is mounted in the bearings 19 19 the vertical drive-shaft 20, which is arranged directly opposite the bumping-beam 16, and upon the upper end of which is secured the step-pulley 21, around which passes the belting which conveys the power from the power-pulley in the stampmill. Upon this vertical revolving shaft 20, directly in a line with the center, is secured the two-armed cam or wiper wheel 22, which is of the shape shown in the top View, Fig. 2 of the drawings, and is secured centrally upon the drive-shaft.

In the outer end of the bumping-beam is journaled or pivoted on a vertical pivot, 23, a friction caster or roller, 24, with which the end of the cam comes in contact, and upon the outer end of the bumping-beam, on each side of the same, are secured the bumpingblocks 25, arranged as clearly shown in Fig. 2 of the drawings, which come in contact with the posts 17 17, and thus prevent the beam from passing too far through the posts, and also assist in the operation in giving the sluice a quick jar.

The several sluices are constructed and mounted precisely alike in all their parts,with the exception that the screen of the second of the series is finer in mesh than the screen 13 of the first or top table or sluice, while the screen 36 of the third table is finer in mesh than the screen 35 of the second table, and the screen 37 of the fourth or lower table is finer in mesh than that of the third machine.

In operation, as the drive-shaft is revolved, the ends of the four cams 22 will bear against the rollers 23 in the ends of the bumping beams, the friction casters being each a hollow sleeve of pipe revolving on a vertical pivot, as shown in the sectional view, Fig.3, of the drawings. The bumping-beams are thus'p'ressed in, so as to swing the several tables in or rearwardly until the wings of the cams pass the ends of the beams and are free from the friction-rollers, when the bumpingbeams are thrown forward by the tension of the springs 26 26, thus bringing the bumpingblocks 25 25 into smart contact with the bumping-posts 17 17, the tables being thrown forward by the tension of the springs 26 with the bumping-beams. It will be seen that by this arrangement the several. tables are given an oscillating motion, the contact of the bumping-block with the bumping-posts giving the desired shake or oscillation. The inclination of the several tables is regulated by the setscrews 10, as before described, this inclination or angle being determined by the nature of the ore to be treated.

Instead of the several sluices or tables being driven by this single vertical shaft 20, they may each be driven by a single horizontal shaft having a cam, 22, and each shaft having a separate pulley.

The machine is fed from the stamp or pulverizer through the pipe 27, arranged near the middle of the upper machine, as shown in Fig. 1 of the drawings, and the machine is watered by the spray-pipes 28 28, placed at desired intervals over it.

29 indicates the pivoted adjustable plate, which I denominate the skimmer. This consists of a plate which is bent at a sharp angle near its center longitudinally and is pivoted at its ends at the deepest point of its depression between the side pieces'of the table 6 and over the table and near the rear end of the same, as shown. This plate or skimmer can be adjusted on its pivotal end points by the adj ustingscrew 30, which passes through an upper cross-piece, 31, ofthesluice, as shown.

The screens 13' are oscillated with their respective tables and the pulverized ore which is fed down upon the upper table from the feed-pipe 27 from the stamp or pulverizer. The mineral or stock under treatment is concentrated as close as possible, the concentrates being discharged through the holes 11 11, while the gangue passes onto the screen 13 of the upper machine. As the gangue moves over the screen 13, the fine gangue and mineral drop through the screen and fall upon an apron orincline, 15, which conveys them down upon the table of the second machine for retreatment, while the coarse gangue passes over the rear end of the screen and drops into the tailing-sluice 32. The object of the screen is to save the mineral that is finer than the gangue of the first concentration. The coarse gangue is of the greatest gravity and carries the fine values and gangue with it into the current of water over the table, and when it goes onto the screen 13 the water, fine gangue, and fine mineral pass through the screen and upon the incline 15 down upon the table of the second sluice, and so on through each sluice as long as there is a desired value.

The several sluices or tables, of which I have shown four, although there may be more or less, as desired, operate in the same manner, each having an incline, 32, beneath its screen end, and the process being really a retreatment of the ores as long as there is any desired value in them, the screen of each machine being of finer mesh than that of the delivery-screen or the screen of the machine immediately above it. The pivoted skimmer29 is adjusted by its set-screw to the desired depth, being raised or lowered in front, when it will skim all floating values to the desired depth, and these floating values thus caught will pass out through the end opening, 33, and through a pipe to be transferred to a settler, which may be a tank or table, as desired. This adjustable plate is placed at a sufiicient height above the bed of the table to allow the gangue and stock to pass under it to be treated on the screen. The operation continues as above described until all the ore has been treated. A

From the foregoing description, taken in connection with the accompanying drawings, the construction, operation, and advantages of my apparatus will be readily understood.

The screens are to be graded according to the ore which is to be treated. I may also, in place of the screens,em ploy hydraulic classifiers, as shown in Fig. 4 of the drawings. The hydraulic classifier can be used in place of a screen where water is plentiful, the current of water lifting out the fine stock and allowing the coarse gangue to be discharged. The hydraulic classifiers are made in many forms; but their operation is essentially the same, lifting out the lighter minerals at or near the top for retreatment by a current of water and current and be drawn off at or near the bottom. The treatment on all the sections of the concentrator (the concentrator comprising as many sections or tables as may be desired for the ore to be treated) is precisely the same as above described.

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is

In an ore-concentrator, the combination of a frame,a reciprocating sluice, two upright bumping-posts secured to the mud-sill of the frame in front of one end ofthe sluice, inclined IIO allowing the heavier ones to sink through the braces secured to the posts and t0 the frame,

In testimony that I claim the foregoing as my a bumping-beam secured at one end to the own I have hereunto affixed my signature in sluice and projecting between the posts at the presence of two witnesses. other end, two blocks upon the side of the 5 beam, two springs secured to the posts and to Witnesses:

JOHN GEORGE SHORTT, JACKSON D. MIsER.

DAVIDv H. MASTERS.

the beam, and a cam for operating the beam and sluice. 

